I have the opportunity to go to Iceland hopefully to see the Northern Lights in March 2015. I have most of the gear but wondering would I need insulated ski trousers? I'm not a skier so wouldn't get much use out of them if I had to buy. Was planning on thermal tights, cotton outdoor trousers and waterproof trousers. We will be glacier walking as part of the trip. I feel the cold so don't want to be cold and wet as it will be pretty miserable. So do you think I should be some or should I be ok without?
TIA!